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Recent content by schmitt trigger

  1. S

    what happen to Pommie

    Similarly, what happened to Audio Guru? Last seen March 2025.
  2. S

    Raise your hand if your car had one of these:

    Indeed. And it was either free or you had paid for it. Once and only once. No slowly bleeding you to death with subscriptions.
  3. S

    Raise your hand if your car had one of these:

    When one didn’t have to have a subscription to listen to music. Even though it was lo-fi, static ridden AM.
  4. S

    Impact of Tariffs on PCB Fab

    Count me as someone else who also wants to know the value of that quote.
  5. S

    Anyone jumped from Easyeda std to Easyeda pro?

    Yes! I also use Ibom.
  6. S

    Anyone jumped from Easyeda std to Easyeda pro?

    This is a specialized but very powerful feature. Another good feature that I also noticed is that when you open a project with a multi-page schematic, the pages appear hierarchically. But there is a big downside for me: while there is a utility you can use to import Standard projects into...
  7. S

    Anyone jumped from Easyeda std to Easyeda pro?

    Anyone has jumped from EasyEDA std to EasyEda pro? I have attempted it, twice. But, and call me a Luddite, I don't like it. My main gripe is that many of the keyboard shortcuts which by now are firmly ingrained into muscle memory, are now different. For instance, to rotate a component, I know...
  8. S

    Impact of Tariffs on PCB Fab

    Weeeell...If one plans to use ExpressPCB, based in Oregon AFAIK, which I used for many, many years until I discovered Chinese vendors. As an exercise, a few minutes ago I re-quoted a board that I had done many years ago. Nothing fancy 2-sided, 1-Oz copper, 67 X 95 mm, HASL, Silkscreen only on...
  9. S

    Current sources in parallel...

    By superposition, yes, all the parallel currents add up. As long as the voltage compliance of the source with the narrowest range is not exceeded. EDIT: I actually did an experiment with a pair of JFETs. As long as the supply voltage was high enough to operate both devices in saturation, the...
  10. S

    3½ Glorious Nixie Tube Digits!

    That was about the time I was guessing. In the mid-1970s I saw a brand new Keithley DMM which it still had Nixies.
  11. S

    3½ Glorious Nixie Tube Digits!

    Can you take a guesstimate of the unit’s manufacture date? Any date codes on components?
  12. S

    What can be the reason behind this tragedy?

    Indeed. The Electricity (Supply) Act 1919.
  13. S

    What can be the reason behind this tragedy?

    Unfortunately, many safety regulations are only legislated after an accident has already happened. Hopefully this tragedy will prompt legislators into action. That would be the redeeming quality for the accident.
  14. S

    Epson crystal oscillators

    It has been a while, but if I remember correctly, the oscillator output of 10 Mhz and higher, is not really a sinewave but a square wave with quite rounded edges. Makes sense, since the harmonics of a steep risetime square wave would be a significant EMI challenge.
  15. S

    What can be the reason behind this tragedy?

    Maybe an improperly patched-up power cord, who knows? Has the accident investigation been completed?
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